Heli towers

Heli towers, are little towers with a roof top design with little mines in it. Those mines are carried out by flying troops. If you step on the mines, the nearby troops die. It can be upgraded six times the last one being unlocked at level 40. Heli towers are considered armored units.

These towers rearm a squad of airborne pigments to drop bombs on attacking troops. These bombs behave like a quirky landmine, explodes on contact, and detonates after some time. Higher level towers maintain larger numbers of flying pigments, meaning more bombs.

This is your first "Long range" defense tower. Flying pigments that spawn from this tower have a great attack range allowing them to bomb attackers without much counter attack. The best way to use heli towers is to put them in a position where attackers CAN'T reach without activating the first capture point. Combine this with well upgraded land mines and other "Pusher" types of defenses, like Tanks, and you can easily give your opponent a REALLY hard time. Don't focus SOLELY on them. A Heliminator Merc, can deal with these guys without much issue.